The Siemens 6ES7823-1AA08-0YE5 is a TIA Portal Multiuser Engineering Upgrade Package, designed to upgrade from V14..V17 to V18. It comes with a floating license, and the software and documentation are provided on a STEP 7 / WinCC DVD, with the license key stored on a USB flash drive. This package supports nine languages (German, English, Chinese, French, Spanish, Italian, Russian, Japanese, and Korean) and is executable on Windows 10, Windows 11, Windows Server 2016, 2019, and 2022.